ul.subgallery {
}

ul.subgallery a:before {
  content: url("https://static.hackerspace.pl/img/jigsoar/dark/16px/16_thumbnail.png");
  padding: 5px;
}

h2 {
  clear: both;
  display: block;
}

ul.subgallery li {
  display: block;
  float: left;
}

ul.pictures {
  list-style-type: none;
}

ul.pictures li {
}

ul.pictures a:after {
  content: attr(title);
}

ul.pictures a, ul.subgallery a {
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.5);
  display: inline;
  float: left;
  margin: 5px;
  padding: 5px;
  text-align: center;
  text-decoration: none;
  color: #333;
  font-family: "Titillium Web";
  font-weight: 600;
  overflow: hidden;
  border: 1px solid #999;
}

ul.pictures img {
  display: block;
  margin: auto;
}

span.clear {
  clear: both;
  display: block;
  text-align: center;
}